Solved: My cursor jumps around while typing?

OS= Windows 7
I'm using an HP laptop. The strangest thing: My cursor seems to jump or move suddenly when typing an MS Word doc. At first I thought I was just brushing the wrong key or something, but now I'm not so sure. I think I may not be at fault here.
My anti malware is updated and used frequently. Microsoft Security Essentials.
Thank you, info is appreciated.

it maybe the touch pad - are you using the touchpad at all - my wife had the same issue and we had to remove a lot of the touchpad functions
you could easily be brushing the touchpad - also sometimes if your paln is near the touchpad and typing can have the same effect

ont of the FN + F keys should disable the touchpad - try that and see if the probelm stops